phone stand 3d model

Create a practical 3D printable phone stand and cable organizer for selling as a physical product. The design should be a single solid piece with a flat rounded rectangular base, an angled backrest for a smartphone, a front lip that holds the phone securely, and three rounded cable slots in the front lip. Add thick triangular side supports under the front lip and behind the backrest so the model prints strong without supports. Use smooth rounded edges, thick walls, no thin fragile parts, no floating pieces, no text, no logo, no moving parts. The model must be optimized for FDM 3D printing in PLA, printable flat on the build plate, no supports required, stable, modern, minimalistic, and functional.